package com.czk.netty.netty.groupchat.heartbeat;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.timeout.IdleStateEvent;

/**
 * @Author:ChenZhangKun
 * @Date: 2021/1/18 21:42
 */
public class MyServerHandler extends ChannelInboundHandlerAdapter {
    /**
     *
     * @param ctx 上下文
     * @param evt 事件
     * @throws Exception
     */
    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
        if (evt instanceof IdleStateEvent){
            // 将event向下转型
            IdleStateEvent event=(IdleStateEvent) evt;
            String eventType=null;
            switch (event.state()){
                case READER_IDLE:
                    eventType="读空闲";
                    break;
                case ALL_IDLE:
                    eventType="读写空闲";
                    break;
                case WRITER_IDLE:
                    eventType="写空闲";
                    break;
                default:
                    break;
            }
            System.out.println(ctx.channel().remoteAddress()+"超时时间=="+eventType);

        }

    }
}
